Use this simple and small glass marker shaped just like a cork to help mark which glass is yours. Easily snaps onto wine stem and made of durable food grade silicone. Includes 4 different multi coloured markers for each of your guests. – Easily snaps onto wine stem- Helps mark which glass is yours- Made of BPA-free, food grade silicone- Set of 4 multi coloured markers- Hand wash only- Dimensions: W 1.1″ (3cm) x Dia 0.6″ (1.5cm)